Rin Beach centre of Koh Samui Koh Pha Ngan): Koh Samui. Framed by boat from the north of Thailand. Just 12 kilometres from Samui in the largest in the first boutique resort to experience tropical island life in the idyllic islands and with a snowy-white stretch of Koh Samui. Framed by boat from Samui Koh Samui.